I was starting a new project, 50 acre farm land. I set a random nail, and put my Javad Triumph LS base over the nail and did an autonomous observation for about a minute to create a point to broadcast base corrections with.
After starting the base, I started a static observation for an 18,000 second duration on the base point. I then started my recon and locations with my second Triumph LS. My recon and field locations were all completed in about 8 hours of time.
When back at the office, I recovered the base point in my rover unit and imported my static file and ran the DPOS for the entire project. Everything looked good, my base point was adjusted ± 0.6’ n and ± 0.6’ E and ± 0.2’ U.
I did download and backup the project prior to the DPOS and again after, so I have before and after information (DPOS). It turns out that only the locations in the rover that has the static file overlap with the base will be adjusted. I did have a good RTK position for all of the points, I mostly wanted to adjust the project to a good processed position (not autonomous). So every point I located after the base reached it 18,000 second duration did not get adjusted with DPOS, and is 0.6’ n, 0.6’e and 0.2’U out of position from the rest of the project.
So now I am going to reset by base static time to 28,800 seconds, or 8 hours, and I now know that I should not take any more measurements after the 8 hours duration from the base. I am not complaining, just though others might want to be aware.
Lee
After starting the base, I started a static observation for an 18,000 second duration on the base point. I then started my recon and locations with my second Triumph LS. My recon and field locations were all completed in about 8 hours of time.
When back at the office, I recovered the base point in my rover unit and imported my static file and ran the DPOS for the entire project. Everything looked good, my base point was adjusted ± 0.6’ n and ± 0.6’ E and ± 0.2’ U.
I did download and backup the project prior to the DPOS and again after, so I have before and after information (DPOS). It turns out that only the locations in the rover that has the static file overlap with the base will be adjusted. I did have a good RTK position for all of the points, I mostly wanted to adjust the project to a good processed position (not autonomous). So every point I located after the base reached it 18,000 second duration did not get adjusted with DPOS, and is 0.6’ n, 0.6’e and 0.2’U out of position from the rest of the project.
So now I am going to reset by base static time to 28,800 seconds, or 8 hours, and I now know that I should not take any more measurements after the 8 hours duration from the base. I am not complaining, just though others might want to be aware.
Lee
